Sprint Ghast

This mod lets you sprint while you're riding a Happy Ghast, increasing it's movement speed by a fair amount.

You can change this speed increase in the mod's config file, at config/sprintghast.json:

{
  "mod_enabled": true,
  "sprint_speed_increase_percentage": 0.6 // speed increase, default: 0.6
}

Does not require Fabric API.